sierra.wigfieldit makes me so happy you and Derek actually had a crush on each other for real!

katiesena_here's a suggestion, when Derek goes to Washington D.C. for the first time Meredith can't believe what happened. so when he walked away she had a dream of what would her life be like if something bad happened. when Derek leaves everything isn't real. from season 11 episode 15 to present season is fake and at one point in season 13 she wakes up and everything is normal.